205500887 has 8 divisors (see below), whose sum is σ = 209166672. Its totient is φ = 201844800.

The previous prime is 205500881. The next prime is 205500899. The reversal of 205500887 is 788005502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205500887 - 2²² = 201306583 is a prime.

It is a super-2 number, since 2×205500887² = 84461229115573538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205500881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50312 + ... + 54242.

It is an arithmetic number, because the mean of its divisors is an integer number (26145834).

Almost surely, 2^205500887 is an apocalyptic number.

205500887 is a deficient number, since it is larger than the sum of its proper divisors (3665785).

205500887 is an equidigital number, since it uses as much as digits as its factorization.

205500887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4849.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 205500887 is about 14335.3021244758. The cubic root of 205500887 is about 590.1166933790.

The spelling of 205500887 in words is "two hundred five million, five hundred thousand, eight hundred eighty-seven".